It goes well... But when you increase your investment... They started having amnesia... Honestly I got around 10x payouts... but recently, I invested. 0.030 btc. 0.028 btc... 0.016 btc total 0.074 btc on the same day... It's more than a week now... NO PAYOUT & ddnt reply my emails... I hate to give 1 star but I have to be honest... To Arbitrage.is I hope that those positive reviews were honest & deserving...